Gas-purifier.



PATENTED FEB. 13, 1906.

L. P. LOWE. GAS PURIFIER.

APPLICATION FILED NOV. 7, 1904.

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5 1a, zuflw wants-mo abtomwm PATENTED FEB. 13, 1906.

L. P. LOWE. GAS PURIFIER.

APPLICATION FILED NOV. 7

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I Ill/1m llllluu any UNITED STATES PATENT OFFICE.

LEON P. LOWE, OF'S-AN FRANCISGO, CALIFORNIA.

GAS-PURIIFIER.

Specification of Letters Patent.

Patented Feb. 13 1906 Application filed November 7, 1904. Serial No. 231,616.

, eration.

Gas-purifiers in general use entail considerable labor and expense in removing the oxid of iron or other purifying material, and es eciallv in large lants, this expense and la or being entailed partly in removing the metallic cover which-seals the gas in the purifier and partly inr'emoving the purifvii ig material from the tra s and replenishing the same. Moreover, t ey are objectionable in that during the processes of rcvivifying and cleaning the purifier the apparatus cannotat the same time be used for the purification of gas.

The object of niy'present improvement is to provide an apparatus which will cheapen the construction by avoiding the-use of exensive mctallidcovcrs, permitting the main body of the apparatus to beinade entirely of wood, if desirable, and also in the ipe connections and operating-valves, whic are of a cheaper form, which will avoid the labor of lifting these heavy covers, which will enable the material to be readily removed from any portion of the apparatus separately, which will allow of any section of the apparatus be ing cut out from the remainder for the purpose of cleaning, replenishing, or revivifying said section, the remainder of the apparatus being still in use, and which will provide more convenient means for so revivifyiug the oxid of iron or other purifying material.

I n the accompanying drawings, Figure l is a broken side elevation of the apparatus. Fig/2 is a vertical section of the same. Fig. 3 is a broken plan view of the same. Fig. 4 is a detail vertical section of the box for a barhandlc. Fig. 5 is a. horizontal section of the same. Fig. 6 is a. front view of one of the eyes for the pivot-rods. Fi' 7 is a vertical detail section showing one 0 the bars in side elevation. Fig. 8 is a plan view of the series ofv bars forming a tray. Fig. 9 is a broken side clevationof a modified form of the invention. Fig. 10 is a simiiar view of a further modification. Fig. 11 is a detail vertical section showing a modified construction of a retaining-bar of the bars of the trays.

Fig. ]2 is a vertical longitudinal section of the same. dle thereof.

Referring to the drawings, 1 re iresents an oblong rectangular box or casing divided into chambers by vertical transverse walls 2. Each chamber is divided into two compartments 3 by a partition 4, extending to a point adjacent to the bottom of the box, but spaced therefrom, so that the two compartments of each chamber communicate underneath the partition 4.

5 6 represent upper and lower series of bars Fig. 13 is a front view of the ban for supporting the purifying material. These bars are hinged at one end to rods 7, passing through eyes 8 on a wall 2, and at the other end they rest upon rods 0, which pass through eves 10, secured to the sides of a partition 4. he ends of the rods 9 are formed with e 'es 1], by which, they can be withdrawn with a hook and are inclosed in air-tight boxes 12.

By providing a plurality of sets of bars one above'the other a greater amount of purify- .-ing material can be used without danger of packing. Also any section of the bars 5 6 can be dropped and the material thereon dumped separately, and the material can be removed by a side door 13 at the bottom or by doors 15 in the bottom. Inclined false bottoms 14 are used to direct the material to the doors 13 15.

16 is a gas-pipe connected with each compartment 3 by a branch pipe 17, having therein a valve 18, and in the gas-pipe 16 are a number of valves 19, alternating with the branch pipes. In the top of each compartment is a charging-hole 20, closed by a cover 21, and in the rst compartment of each chamber is an 0 enin 22, closed by a cover 23, and over one I such 0 )enirig 22 is a chimnc 24, extending throug the roof. At the si e of each com )artment near the top is a. door 25, by whic access can be. had to the compartment for raking orstirring the material therein.

The operation of the apparatus is as follows: The compartments having been supplied with a suitable quantity of oxid of iron or other purifying material resting upon the bars 5 6, all the valves 18 in' the branch pipes 17 are opened and of the valves 19 inthe gas-pipe alternate valves are closed-namely,

' those lying over the partitions 4, separating the two compartments of each chainber'from each other. The other yalves mare-open.

- Gas being then permitted to flow through said gas-pipe, as from right to left, passes down through the first valve 18 on the right into the first compartment 3, through the purifying material therein, underneath the partition 4, up through the purifying mate- 'rial in the second compartment, through the second valve 18, then-through the second valve 19, '\\'hl('his open, and so on in a zigzag .course through the chambers,in each case passing. down through the first compartment in each chamberand upwardt hrough the second compartment, the gas thus passing through the chambers in succession is purified. Thus if the purifying material be oxidof iron any sulfureted hydrogenjin the gas passing through said oxid of iron is deconi )osed, forming with the crud of iron sultld mm. W hen this process has been continued so long that the oxid of -ir'on is no longer effective in purifying gas, it= is necessary to revivif y the oxid of iron, and this is done according to the well-known processby passing air through the sullid of iron to convert it into orii'd of iron and free sulfur. With my present Lip iaratus this can be-done with the-material in one chamber at a time without interfering with the action of the remainin chambers. For instance, suppose it is desired to revivify the material in the second chamber, contain ing the third and fourth compartments.

said compartment or-throli gh the door 25 at the top 0 the side wali fand causing the air to pass down through the second compartment and up through the first-that is, m the reverse direction to that of the gas. This direction is advantageous, because thereby the revivitication ot' the purit'yin material takes place more slowly and wit 1 a'smaller development of heat; .This operation is performed by joining to the opening 22 in the to of the first compartment a small movab le jct-cxhauster- 26, connected to a flexible hose 27, supplied with steam from any suitable source. The cover of the .open

in 22 is removed, and the jet-exhauster is su stituted therefor, the top of the exhauster entering the chimney 24. Then, steam be ing supplied, a suction is caused in the two compartments of the chamber, drawing air down through the-second compartment and up through the first. By this means the sultid of iron is convert-edinto oxid of iron and free sulfur, thus providing a fresh supply of oxid of iron for purifying the gas. 11 way each of the chambers in succession may be treated without affecting the other cham bers. I

In Fig. 9 is shown a modified form of apparatus embodying in part the novel features of my invention in which the gas is admitted by a conduit 29 to the end of the rectangular box 30, which is divided into chambers by walls 31, extending from. the bottom to a point near the top, each chamber beingdivided into compartments bypartitions 32, extending from the to tea point; near "the bottom. 33 is the out et gas-pipe. The gas admitted .by the inlet-pipe passes'down through the first compartment, through the purifyin material therein, around the bot-- tom'of tiiepartition 32, up through the p'uritying material in the second compartment, and then over the wall 31 into the first con1- partment'of the second chamber, and so on through the chambers in series. To revivify the purifying material, air may be admitted by an openin 35 to the last compartment of the series ant passed through in the reverse direction into the first compartment and out through an opening 36. Suitable valves 37 38. are rovidcd for controlling the as.

In t re further modification of the invention shown in Fig. 10 the trays are dispensed with and the material is laid upon the-bot tom of. the chamber, being confincdto the middle of the bottom underneath the partitions 41 by means of sloping false bottoms 42.

In other respects the construction is the same as in the last-described modification.

While the gas-purifiers illustrated in Figs. 9 and 10 are inferior to the apparatus first described in regard to the extent to which adjustment may be made to conform to various required operations, yet they are sufficient in certain cases, or in large plants a number of them may be provided, some of which are out of use and undergoing revivification while the remainder are in use'for the I purpose of purifying the gas.

In the modification shown in Figs. 11, 12, 13 the bars 5 and 6 are upheld by. ribs 44 on sleeves 45, securedgon rock-shafts 46, which extend through the side of the casing and are rocked by means of cranks 47, the ends of which rest against pins 48, inserted into the casing. By withdrawing these pins the shafts can be rocked through a right angle, as shown by dotted lines in Flg. 13, to lower' the ribs and allow the .barsforming drop to dump the material.

I claimv the trap to 1. A gas-purifier com rising vided vertically into a orizontal series of chambers, and having connections at top whereby the s can be passed in succession through the c embers, each chamber havinga vertical partition dividing it into two compartments connected at the bottom, and a door'at the bottom of each chamber opposite tothe vertical partition therein, substantially as described 2. A gas-purifier comprising a casing divided vertically into a horizontal series of chambers, and having conneotionsat the top whereby the as can be passed in succession V through the c iembcrs, each chamber having i a vertical partition dividing it into two compartments connected at the bottom, movable supports in each compartment for purifying material, and a door at the bottom of each chamber 0 posite to the rerticel partition therein, su stantially as described.

3. A..gespurifier comprising eioasing divillsd vertically into a horizontal series of chambers, each chamber having a vertical partition dividing it. 'nto two compartmentsconnected the bottom, a pipe extending over, and parallel with said chamb :s, a valved connection from said pipe to each chamber, a valve in the pipe over each partition, movable supports in each compartment for purifying material, and an opening for removing the material from the bottom ofeach chamber, substantially as described.

In witness whereof l have hereunto set my hand in the presence of two subscribing wit nesses.

L. P. LQ WE.

Witnesses:

FRANCIS M. WRIGHT, -Bnss1n GORFINKEL. 

